Dynamic adjustment of task states enhances the Chinese N200 effect: Evidence from the Bayesian Reader model

How does the brain dynamically modulate orthographic recognition processes according to task state? Repeated presentation of Chinese characters alters early orthographic processing, eliciting an enhanced N200 effect. However, whether the influence of repetition on early orthographic processing extends beyond stimulus-driven feedforward processing to include task-state-driven tuning processes remains controversial. The former predicts that this effect is unaffected by task state, whereas the latter predicts that it is dynamically optimized with task state. This study, through two EEG experiments, examined the modulatory role of task state on this effect from the perspective of the Bayesian reader model. Experiment 1 manipulated repetition probability and task type, finding that in the lexical-semantic access task (...)